Meanwhile, throughout 1945, Japanese combatants were killing 100,000 to 250,000 non-combatants in Asia, most of them civilians, every week or month if the war continued. That's like Hiroshima a week or a month. And the day that we were going to invade Japan set for November 1, 1945, the Japanese government ordered that all American POWs to be executed at mass. The Japanese as a whole were still patrotically motivated against all odds and still had plenty of ships and thousands of planes to dive into American ships even if their entire nation was blockaded. There was NO indication that they were going to surrender at all, because they still had plenty of ships and materials meant to inflict Allied deaths.

The idea of using a nuke was to demonstrate the nation of Japan that we had one bomb capable of destroying a city in a flash and there was nothing the Japanese can do to counter it, because at least they had a chance to shoot down the bombers carrying conventional firebombs, but there was nothing they can do to counter a single bomber from unleasing the most destructive weapon against enemy targets and cooking them in a flash. They didn't surrender after Hiroshima because they thought we only had one atomic bomb so when we found out, we dropped another atomic bomb on Nagasaki. As it turned out, it quite worked in scaring the Japanese into surrendering rather than allowing their own cities to be roasted by nuclear fire.

Most Americans and other Allied citizens hated the Japanese with a utmost passion. After all, Japan was an enemy of America and other Allied nations. The U.S. and its allies were in NO mood for the war to be prolonged any longer just to spare the lives of Japanese combatants and civilians from being nuked, while hundreds of thousands of Western and Asian people were being killed or mass murdered as long the war goes on.